To give something to Krishna is an extremely elevated activity  whether you give some of your time to hear and chant, some of your energy, some of your money or ultimately some of your love. If we give something to Krishna we do not loose anything. In whatever way you give something to Him, He'll reciprocate in manifold ways. If you can therefore give something to please the Lord, it is also for your own benefit. A devotee offers everything to Krishna  his words, actions and thoughts. This is, of course, a very elevated platform, but Krishna declares in Bhagavad-gita that if you cannot do this, then give at least a part of the fruits of your activities and you will gain spiritual upliftment.
The Bhaktivedanta Book Trust Sweden is giving Krishna to the world through books and other publications. By making a contribution to the propagation of Krishna consciousness today you can become a part of the growing family of supporters of the BBT and take part in Srila Prabhupada's sankirtan mission.

Srila Prabhupada speaks out:So I can see that there is a very good potency at the present moment for spreading this movement as was designed by my Guru Maharaja, and I am simply trying my best to carry out His desire. And if some of my students adopt this attitude, without any other motivation, surely Krishna will fulfill our desire. So push on with book publication and distribution, and I am very glad that you are now distributing to schools and libraries.
(Letter to Bhagavan, 22 September 1970)